Flusher for water-closets and the like.



W. TImNBULL.v

FLUSHER FOR WATER GLOSETS AND THE LIKE.

APPLICATIDN FILED AUG/.5, 1908.

v960,602. Specification of Letters Patent.

To all whom 'it may concern:

WILLIAM TURN-BULL, F WELLINGTON, NEW ZEALAND.

FLUSHER FOR WATER-CLOSETS AND THE LIKE.

Patented June '7, 1910.

Application filed August 5, 1908. Serial No. 447,179.

Be it known that I, WILLIAM TURNBULL, av subject of His Majesty the Kingof Great Britain and Ireland, residing at 256 Lambton Quay, lVellington,in the provincial district of Wellington, in the Dominion of NewZealand, have invented certain new and useful Improvements in anImproved Flusher for Water-Closets and the Like, of which the followingis a specification.

This invention relates to apparatus used in systems for flushing waterclosets and the like, and by which waste of water is prevented.

`By my invention a predetermined amount of water passes to the pan ofthe closet each time the apparatus is operated and this amount cannot beexceeded by the operator until after a predetermined lapse of time whichcan be readily varied.

I attain these objects of my invention by the mechanism illustrated inthe accompanying drawing, in which Figure 1, is a sectional elevation,Fig. 2, a sectional elevation on line A`A Fig. 1. Fig. 3, a plan of avalve.

The down pipe 1 is connected to any suit able storage of water such asaV tank placed in a high part, of a building to the water closets ofwhich the flusher is fitted. A stop valve 2 having a screwed spindle 3is adapted to close the pipe 1 and cut off the water when it is desiredto exam-ine the flusher or to regulate the amount of water admitted tothe flusher. The pipe 1 screws into an clbow 4v to which the iiusher isconnected by a union nut 5.

The lusher comprises two cylindrical chambers 6 and 7 connected togetherby a union nut 8, closed at the top by caps 9 and 10, and fitted withvalves and mechanism, which will now be described in detail. 4

The chamber 6 has a valve seating 11 located below the level of theelbow 4 and is fitted with a leather faced valve 12. The stem 13 of thisvalve descends through a guide bar 14 into the lower part of t-hechamber, where it is connected by a link 15 to an 'arm 16 fixed to aspindle 17 passing through a stuffing box 18 to the outside of thechamber. An operating handle 19 is fixed tothe spindle, so that when thesaid handle is raised the Valve 12 is lifted off its seat.

The top of the valve 12 is provided with a hollow stem 20 having lateralholes 21 coinmunicating with the interior of. the said stem. A leatherfaced valve 22 fixed to the top of the stem 2O fits upon a seat- 23formed upon a piston 24 having holes 25 within the clrcumference of thevalve seat 23. The

stem 20 is fittedwith a screw 26 having a sawcut 27.

The chamber 7 has a valve seat 3() surrounded by acircular wall 3 1,fitted with a leather faced valve 32, .and made integral wlth a plston33 by a neck 34 having a lateral hole 35. Holes communicating with thetop of the piston 35 andthe bottom of the Valve 32 are tted respectivelywith screws 37 and 38-` having sawcuts 39 and 40. A second piston 41super-posed upon the piston 33 has a valve seat 42 adapted to close upona leather valve 4seat 43 ixednear the top of this chamber 7 Acommunication between thetop of the lchamber above the valve seat 43 andbelow passes through the holes 25 until the upper part of the chamber islled. If an operator now raises the handle 19, the valve 12 is liftedolf its seat, and the valve 22 and piston 24 raised, water passing fromabove to below the lpiston through the holes 25.

Upon the operator releasing the handle the valve 22 closes upon its seat23, preventing water passing through the holes 25, but allowing water topass through the holes 21 and the sawcut 27. The handle will then slowlydescend until the valve 12 settles upon its seat, and the piston 24 willthen fall down upon its shoulder 48.

The raising of the valve 12 admits to the chamber 7, and the waterforces the pistons 33 and 41 to the top of the chamber 7, lifting thevalve 32 off its seat, air confined in the upper part of the saidchamber escaping through the passage'45.v Water for flushing passesthrough Athe lower part of water the chamber, which is connected inanyordicircular wall 31, and the piston 41 preventing water passing downthe passage 45. The How of flushing Water then ceases and until` it isreleased the water trapped between the pistons 33 and 41 prevents thevalve 33 from being a ain raised. The duration of time of with rawal ofthis water 1s regulated by the screw 38 and its sawcut 40 to allow theconfined water to pass at any desired speed. The water from the lowerpart of the chambers passes slowly away through the sawcut 40 in thescrew 38 and is followed by the water confined between the two pistons33 and 41. Upon the withdrawal of the Water the piston 41 descends,leaving the space above illed with air ready to be expelled through thepassage 45 when the handle 19 is again operated.

If an operator attempts to effect a continuous flow of Water by holdingup the handle 19, his object will be defeated, as the valve 32 willnevertheless descend upon its seat and stop the How. Similarly the flowwill not be made to continue by raising the handle 19 several times insuccession. The flow of water through the lusher does not lift theiston=33 until the piston 41 has descendom the seat 43.

What I do claim and desire to secure by Letters Patent of the UnitedStates is In a lusher of the class described a first chamber, a secondchamber communicating with the rst'chamber, a valve and valve seatwithin the second chamber, a piston above the -`valve and fitting thesecond chamber, a neck having a lateral hole and connecting the valveand piston, screws having sawcuts and screwed into holes passing throughthe piston and valve and communicating with the lateral hole in theneck, a second piston fitting the second chamber and a valve seat at thetop of the second chamber, there being a passage for air from the top ofthe second chamber to the bottom thereof, asset forth.'

In testimony whereof I have signed my name to this specification in thepresence of two witnesses.

WILLIAM TURNBULL.

Witnesses:

ERNEST SMITH BALDWIN, HEWNETT RAYWARD.

